公开(公告)号：US4319333A

公开(公告)日：1982-03-09

申请号：US105035

申请日：1979-12-19

申请人： Geoffrey S. M. Hedrick

发明人： Geoffrey S. M. Hedrick

IPC分类号： G01P5/175 ,  G01P5/00

CPC分类号： G01P5/175

摘要： A mach airspeed indicator capable of internally determining mach number and VMO from measured altitude and airspeed information directly. An internal microprocessor, capable of storing a plurality of selectable VMO curves and a table of mach number versus q.sub.c /P.sub.s, receives the measured altitude and airspeed information, determines VMO and mach number therefrom, and directly drives the VMO and mach number displays where q.sub.c represents the impact pressure and P.sub.s represents the static pressure. The measured altitude and airspeed signals are analog synchro signals. In order to drive the VMO display, the received analog altitude synchro signals are digitized in a synchro-to-digital converter comprising a single multiplying digital-to-analog converter for both sin .theta. and cos .theta. synchro functions, and fed to the microprocessor which verifies the appropriate VMO from the preselected VMO curve, and drives the VMO analog pointer via a stepper motor servo loop closed by the microprocessor. If the VMO is exceeded, the microprocessor provides an overspeed alarm control signal. In order to drive the mach number display, both the received measured analog altitude and airspeed synchro signals are received, digitized in the synchro-to-digital converter, and fed to the microprocessor. The microprocessor converts the digital airspeed signal into q.sub.c /P.sub.s signal which is used to determine mach number from the stored values. The microprocessor then drives the mach number counter display via a separate stepper motor servo loop closed by the common microprocessor.

摘要翻译： 马赫速度指示器能够直接从测量的高度和空速信息内部确定马赫数和VMO。 能够存储多个可选择的VMO曲线的内部微处理器和马赫数与qc / Ps的表接收测量的高度和空速信息，从其确定VMO和马赫数，并直接驱动VMO和马赫数显示，其中qc 表示冲击压力，Ps表示静压力。 测量的高度和空速信号是模拟同步信号。 为了驱动VMO显示器，所接收的模拟高度同步信号在同步数字转换器中被数字化，该同步数字转换器包括用于sinθ和cosθ同步功能的单个乘法数模转换器，并馈送到微处理器 从预选的VMO曲线验证适当的VMO，并通过微处理器关闭的步进电机伺服循环来驱动VMO模拟指针。 如果超出VMO，则微处理器提供超速报警控制信号。 为了驱动马赫数显示，接收到的所测量的模拟高度和空速同步信号都被接收，在同步数字转换器中数字化，并被馈送到微处理器。 微处理器将数字空速信号转换成qc / Ps信号，该信号用于根据存储的值确定马赫数。 然后，微处理器通过由公共微处理器关闭的单独的步进电机伺服循环来驱动马赫数计数器显示。

公开(公告)号：US4259865A

公开(公告)日：1981-04-07

申请号：US83918

申请日：1979-10-11

申请人： Ronald V. Myers

发明人： Ronald V. Myers

IPC分类号： G01F23/26

CPC分类号： G01F23/266

摘要： A fuel-gauging system has a capacitive sensor that is mounted in a fuel tank and supplied with an alternating electric signal from an oscillator. The oscillator output is supplied to a diode-pump circuit that produces a D.C. voltage proportional to the product of the amplitude and the frequency of the oscillator output. The D.C. voltage is supplied to the input of a comparator that receives a constant voltage at its other input. The comparator produces a D.C. output voltage, dependent on the difference between its inputs, which is supplied to an input of the oscillator, the oscillator being arranged such that the amplitude of its output voltage is dependent upon the amplitude of the input voltage. In this way, the product of the amplitude and frequency of the oscillator output is maintained substantially constant. The system may have another capacitor located in the fuel tank to enable compensation for temperature changes, and a further capacitor of open construction immersed in the fuel, arranged to enable compensation for changes in permittivity of the fuel.

摘要翻译： 燃料计量系统具有安装在燃料箱中并且提供来自振荡器的交流电信号的电容式传感器。 振荡器输出被提供给二极管泵电路，其产生与振荡器输出的幅度和频率的乘积成比例的直流电压。 直流电压被提供给在另一个输入端接收恒定电压的比较器的输入端。 比较器产生D.C.输出电压，其取决于其输入之间的差异，其被提供给振荡器的输入，振荡器被布置成使得其输出电压的幅度取决于输入电压的幅度。 以这种方式，振荡器输出的振幅和频率的乘积保持基本恒定。 该系统可以具有位于燃料箱中的另一个电容器，以便能够补偿温度变化，以及沉积在燃料中的开放式结构的另外的电容器，其布置成能够补偿燃料的介电常数的变化。

公开(公告)号：US4232312A

公开(公告)日：1980-11-04

申请号：US882031

申请日：1978-03-06

申请人： Edward S. Eccles ,  Harry Gibson

发明人： Edward S. Eccles ,  Harry Gibson

IPC分类号： G01R13/40 ,  G06F3/14

CPC分类号： G01R13/406

摘要： An electrical indicator has a consecutive series of light-emitting diodes which are arranged along a straight or curved reference scale. A limited region of the series, comprising several diodes, is energized and this illuminated region is displaced along the scale upon change in an electrical input variable supplied to the indicator such that the position of the region provides an analogue indication of the value of the input variable. To improve the appearance of the display and reduce power consumption, the brightness of the region varies along its length with one or both of the outermost diodes being energized at lower levels than another of the diodes. The indicator may include a shift register having a number of storage locations, each for storing signals representative of a corresponding one of the light-emitting diodes, the signals at these locations being displaced in accordance with change in value of the input variable. Signals output from each storage location of the shift register are supplied to a gate which controls switching of a transistor that is connected in series with a resistor in the energizing circuit of each light-emitting diode. Each energizing circuit includes two such transistors and associated gates which control the degree of brightening of each light-emitting diode by switching one or more resistors in parallel in the circuit. The gates are connected to control brightening of one diode in accordance with brightening of one or more other diodes.

摘要翻译： 电指示器具有连续的一系列发光二极管，其沿直线或弯曲的基准刻度排列。 包括几个二极管的该系列的有限区域被激励，并且当提供给指示器的电输入变量发生变化时，该照明区域沿着标尺位移，使得该区域的位置提供输入值的模拟指示 变量。 为了改善显示器的外观并降低功耗，该区域的亮度沿其长度变化，其中一个或两个最外面的二极管以比另一个二极管低的水平通电。 指示器可以包括具有多个存储位置的移位寄存器，每个存储位置用于存储表示相应的一个发光二极管的信号，这些位置处的信号根据输入变量的值的变化而移位。 从移位寄存器的每个存储位置输出的信号被提供给控制在每个发光二极管的激励电路中与电阻器串联连接的晶体管的开关的栅极。 每个激励电路包括两个这样的晶体管和相关联的栅极，其通过在电路中并联地切换一个或多个电阻来控制每个发光二极管的亮度。 栅极被连接以根据一个或多个其它二极管的增亮来控制一个二极管的增亮。

公开(公告)号：US4184743A

公开(公告)日：1980-01-22

申请号：US875839

申请日：1978-02-07

申请人： Peter D. Baker ,  Douglas V. Luke

发明人： Peter D. Baker ,  Douglas V. Luke

IPC分类号： G02B6/40 ,  G02B6/44 ,  G02B5/16

CPC分类号： G02B6/403 ,  G02B6/4415 ,  G02B6/443

摘要： A fibre-optic cable has a bundle of glass-fibre or silica-fibre strands extending along its length, each end of the fibre-bundle being sealed in a metal ferrule. A sheath of woven glass-fibre or silica-fibre extends about the fibre-bundle and is secured at each end to a respective ferrule in tension, such that the sheath is constricted onto the fibre-bundle along its length. The cable has an outer convoluted metal shell which is sealed at each end to a respective ferrule. A sleeve of elastic material extends around the fibre-bundle and the sheath, within the outer shell, and serves to support and cushion the fibre-bundle along its length. The sleeve may be of a woven fibre including glass-fibre or silica-fibre, and asbestos-fibre, or the sleeve may be of an elastomeric substance. A metal braid sleeve covers the outer surface of the convoluted metal shell. The cable may be included in a radiation pyrometer to transmit radiation to a radiation sensor.

摘要翻译： 光纤电缆具有沿着其长度延伸的一束玻璃纤维或二氧化硅 - 纤维束，纤维束的每一端被密封在金属套圈中。 编织玻璃纤维或二氧化硅纤维的护套围绕纤维束延伸，并且在每一端被固定在相应的套圈上，使得护套沿其长度收缩在纤维束上。 电缆具有外部卷曲的金属外壳，每个端部密封在相应的套圈上。 弹性材料的套筒在外壳内围绕纤维束和护套延伸，并用于沿其长度支撑和缓冲纤维束。 套筒可以是包括玻璃纤维或二氧化硅纤维的编织纤维和石棉纤维，或者套筒可以是弹性体。 金属编织套筒覆盖回旋金属壳体的外表面。 电缆可以包括在辐射高温计中以将辐射传输到辐射传感器。

公开(公告)号：US4182009A

公开(公告)日：1980-01-08

申请号：US885246

申请日：1978-03-10

申请人： Ronald H. Cooper ,  Kenneth A. Goreham ,  Christopher B. Wakeford

发明人： Ronald H. Cooper ,  Kenneth A. Goreham ,  Christopher B. Wakeford

IPC分类号： H01T13/52 ,  F23Q3/00 ,  H01T21/00 ,  H01T21/02

CPC分类号： F23Q3/006 ,  H01T21/02

摘要： A surface-discharge igniter is formed by positioning a tubular assembly coaxially within the outer shell of a nose portion of the igniter. The assembly is welded about one end to form a seal with the outer shell, and glass material is placed within the assembly to form a seal with a central rod-shape electrode extending coaxially within the assembly. The assembly has an outer tube of the same material as the outer shell, and an inner tube which extends coaxially within the outer tube and which is of a different material, having a coefficient of thermal expansion substantially the same as that of the glass material. The inner tube is joined to the outer tube at an end remote from the seal with the outer shell. The nose portion forms the operative tip of the igniter and is welded to a rear body portion having screw threads for mounting the igniter and for making electrical connection to it.

摘要翻译： 通过将管状组件同轴地定位在点火器的鼻部的外壳内而形成表面放电点火器。 组件围绕一端焊接以与外壳形成密封，并且将玻璃材料放置在组件内以与组件内同轴延伸的中心棒状电极形成密封。 该组件具有与外壳相同材料的外管，以及内管，该内管在外管内同轴延伸并且具有不同材料，其热膨胀系数基本上与玻璃材料的热膨胀系数相同。 内管在远离与外壳的密封件的端部处连接到外管。 鼻部形成点火器的操作尖端，并焊接到具有用于安装点火器并用于与其连接的螺纹的后部主体部分。

公开(公告)号：US4176546A

公开(公告)日：1979-12-04

申请号：US963066

申请日：1978-11-22

申请人： Harry Gibson ,  John W. D. Jones

发明人： Harry Gibson ,  John W. D. Jones

IPC分类号： G01C21/10

CPC分类号： G01P1/08 ,  Y10S116/43

摘要： An aircraft-speed indicating instrument has an index which is movable against a scale to provide a reading of airspeed, and a digital indicator which is selectively operable to provide a digital reading of either Mach number or the airspeed. The index and the digital indicator are driven by respective control systems supplied with a multiplexed electrical signal containing information representative of both Mach number and airspeed. Each control system includes gating means which is operable to pass only those parts of the multiplexed signal necessary for the associated control means to provde the desired reading.

摘要翻译： 飞机速度指示仪器具有可以按比例移动以提供空速读数的索引，以及可选择性地操作以提供马赫数或空速的数字读数的数字指示器。 索引和数字指示器由提供有代表马赫数和空速两者的信息的复用电信号的各个控制系统驱动。 每个控制系统包括选通装置，其可操作以仅通过相关联的控制装置所需的多路复用信号的那些部分来提供期望的读数。

公开(公告)号：US4167113A

公开(公告)日：1979-09-11

申请号：US855111

申请日：1977-11-25

申请人： George Mann

发明人： George Mann

IPC分类号： G01C23/00 ,  G01C21/00

CPC分类号： G01C23/005

摘要： A head-up display system for an aircraft has a display unit which projects a display of symbology representing the aircraft flight parameters onto a separately mounted partially-transparent reflector positioned in front of the aircraft pilot, so that the pilot sees an image of the display against the external scene. The display unit has a sensor which receives an image of the display via the reflector. The sensor responds to displacement of this image from a reference established with respect to the display unit, caused by movement of the reflector relative to the display unit, and the display is correspondingly modified to compensate for such movement. The display unit may include a cathode-ray tube for providing the display which can be modified by adjustment of the deflection of the cathode-ray beam. In this case the reference established with respect to the display unit may be an instantaneous point image of the cathode-ray beam. A light source may be mounted with the display unit and the sensor may be arranged to respond additionally to displacement of an image of this light source received via the reflector. The light source may be located at a position spaced from the center of the display. Two sensors may be provided in the display unit, one of which receives an image of the display directly from within the unit, and the other of which receives an image of the display via the reflector, the display being modified in accordance with the difference between the outputs of the two sensors. The sensors may each be formed by a matrix array of photo-responsive devices.

摘要翻译： 用于飞行器的平视显示系统具有显示单元，其将表示飞行器飞行参数的符号体系显示器投射到位于飞行器飞行员前面的单独安装的部分透明的反射器上，使得飞行员看到显示器的图像 反对外部场景。 显示单元具有经由反射器接收显示器的图像的传感器。 传感器响应于由反射器相对于显示单元的移动引起的相对于显示单元建立的参考图像的位移，并且相应地修改显示器以补偿这种移动。 显示单元可以包括用于提供显示器的阴极射线管，该阴极射线管可以通过调节阴极射线束的偏转而被修改。 在这种情况下，关于显示单元建立的参考可以是阴极射线束的瞬时点图像。 可以用显示单元安装光源，并且传感器可以被布置成另外响应经由反射器接收的该光源的图像的位移。 光源可以位于与显示器的中心隔开的位置。 可以在显示单元中提供两个传感器，其中一个传感器直接从单元内接收显示器的图像，另一个传感器经由反射器接收显示器的图像，显​​示器根据 两个传感器的输出。 传感器可以由光响应装置的矩阵阵列形成。

公开(公告)号：US4240074A

公开(公告)日：1980-12-16

申请号：US11588

申请日：1979-02-12

申请人： Harry Gibson ,  Peter F. Maycock

发明人： Harry Gibson ,  Peter F. Maycock

IPC分类号： G01R13/40 ,  G09F9/30 ,  G09G3/00 ,  G09G3/04 ,  G08B25/00 ,  G06F3/14 ,  G09F9/32

CPC分类号： G09G3/004 ,  G01R13/408 ,  G09F9/30 ,  G09G3/04

摘要： An electrical indicator for providing a digital display representation of the value of an input variable has four display areas, each area being arranged to display an individual one of the digits of a four digit number representative of the value of the input variable. Each display area is in the form of a matrix array of light-emitting diodes. The indicator includes a computing unit which is arranged to energize those diodes making up each digit and, by varying the energization, to cause displacement of the least-significant digit within its display area upon change in value of the input variable. Digits within the other areas remain stationary until an adjacent less-significant digit is moved between `0` and `9` when the more-significant digit is displaced in synchronism with the less-significant digit. The computing unit includes a store which contains information as to which diodes should be energized to represent any particular digit. The computing unit initially addresses only those locations in the store relating to diodes along one row of the matrix, and is incremented subsequently to read out information relating to other rows.

摘要翻译： 用于提供输入变量的值的数字显示表示的电指示器具有四个显示区域，每个区域被布置为显示表示输入变量的值的四位数字的数字中的单个数字。 每个显示区域是发光二极管矩阵阵列的形式。 指示器包括计算单元，其被布置成对构成每个数字的那些二极管通电，并且通过改变通电，在输入变量的值改变时引起其显示区域内的最低有效数位的位移。 其他区域内的数字保持不变，直到相对较低有效数字在“0”和“9”之间移动，当较高有效位与较低有效位同步移位时。 计算单元包括一个存储器，该存储器包含关于哪些二极管应被激励以表示任何特定数字的信息。 计算单元最初只处理存储器中与矩阵的一行相关的二极管的那些位置，并随后增加以读出与其它行有关的信息。

公开(公告)号：US4181397A

公开(公告)日：1980-01-01

申请号：US885241

申请日：1978-03-10

申请人： Peter D. Baker ,  Douglas V. Luke

发明人： Peter D. Baker ,  Douglas V. Luke

IPC分类号： G02B6/40 ,  G02B6/44 ,  G02B5/16

CPC分类号： G02B6/403 ,  G02B6/4401 ,  G02B6/4415

摘要： A fibre-optic cable includes a fibre-bundle, for transmitting light along the cable, that is sealed at either end to a metal ferrule. Each end of the fibre-bundle projects a short distance from its respective ferrule and is enclosed by a metal collar which is welded to the ferrule. The projecting ends of the fibre-bundle are sealed to the ferrules by melting a glass tube within each collar about the ends of the fibre-bundle. A thread of glass or Silastomer material extends between the two ferrules and is helically wound about the fibre-bundle so as to hold together the fibres of the fibre-bundle. Convoluted outer metal tubing extends about the fibre-bundle and is welded at each end to respective ferrules. The fibre-bundle is cushioned within the outer tubing by a sleeve of woven fibre which also extends between the two ferrules about the fibre-bundle and the helical thread. The outer tubing may be evacuated or contain an inert gas at low pressure, or the outer tubing could contain a lubricant such as powdered polytetrafluoroethylene. Alternatively, a silicone oil could be used as a lubricant and, where the cable is to have one end mounted at a hot location, the silicone oil could be chosen to be a gel at that end while being a liquid where cooler, away from that end.

摘要翻译： 光纤电缆包括用于沿着电缆传输光的光纤束，其在任一端被密封到金属套圈。 纤维束的每个端部从其相应的套圈突出一短的距离，并被焊接到套圈的金属套环包围。 将纤维束的突出端通过围绕纤维束的端部熔化每个轴环内的玻璃管而密封到套圈。 玻璃或硅橡胶材料的螺纹在两个套圈之间延伸并围绕纤维束螺旋缠绕，以便将纤维束的纤维保持在一起。 卷绕的外金属管围绕纤维束延伸，并在每端焊接到相应的套圈上。 纤维束通过编织纤维套筒在外管内缓冲，纤维束也围绕纤维束和螺旋线在两个套圈之间延伸。 外管可以在低压下抽真空或含有惰性气体，或者外管可以含有润滑剂如粉末聚四氟乙烯。 或者，可以使用硅油作为润滑剂，并且在电缆将一端安装在热位置的情况下，硅油可以在该端被选择为凝胶，同时是较冷却器的液体，远离该液体 结束。

公开(公告)号：US4157465A

公开(公告)日：1979-06-05

申请号：US581234

申请日：1975-05-27

申请人： Geoffrey Beardmore ,  Hugh N. Evans

发明人： Geoffrey Beardmore ,  Hugh N. Evans

IPC分类号： B23K17/00 ,  B23K9/00

CPC分类号： B23K17/00

摘要： The spiral grooving of a thrust-plate of an aerodynamic gas-lubricated bearing is formed by ionic bombardment of a flat face of a machined blank. The face is masked to leave exposed only those areas where material is to be removed. Grooving on a cylindrical surface of a spindle is similarly formed, the cylindrical blank being rotated to present the unmasked areas successively and repeatedly for bombardment.

摘要翻译： 空气动力气体润滑轴承的推力板的螺旋槽由通过机加工坯料的平面的离子轰击形成。 面罩被掩盖，只露出那些要去除材料的区域。 类似地形成在主轴的圆柱形表面上的凹槽，圆柱形坯料被旋转以连续和反复地呈现未掩蔽区域用于轰击。